3D

American

[three-dee] / ˈθriˈdi /

Or 3-D

adjective

of, relating to, or representing something in three dimensions; three-dimensional.

3D movies.

noun

a three-dimensional form or appearance.

My dreams are always in 3D.

Etymology

Origin of 3D

An Americanism dating back to 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Take “Avatar,” which seduced audiences with its immersive 3D format so intensely that some viewers reported experiencing depression returning to the real world.

From Salon ● Jul. 22, 2026

Time and again, the 11th-Century seamstresses who created it - who are believed to have been in England, probably Canterbury - were so skilled that the story they are telling looks like it's in 3D.

From BBC ● Jul. 17, 2026

Advances in 3D printing have made the conversion devices widely available and cheap to produce.

From Los Angeles Times ● Jul. 1, 2026

UV light is used for air purification, curing resins in 3D printing, hardening gels in dental fillings, and even applications such as nail treatments.

From Science Daily ● Jun. 26, 2026

It’s technically two tattoos, one on top of the other, so it almost looks like it’s 3D.

From "The Manifestor Prophecy" by Angie Thomas

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023